Tire-plug.



G. A. B. KAUL.

TIRE PLUG.

LED JUNI. a 1910.

Patented Aug. 15, 1911.

, patch applied thereto.

GUS'IAV A. E. KAUL, O15 HACKENSACK, NEW JERSEY.

T0 aZZ whom it may concern:

Be it known that I, GUSTAV A. E. KAUL, a citizen of the United States,residing at Hackensack, in the county of Bergen and State of New Jersey,have inventecl certain new and useful mprovements in Tire-Plugs, ofwhich the following is a specification.

This invention relates to repair devices and more particularly toclevices for repair ing pneumatic tires or other air or moisture tightarticles, and has for its object to provide a patch Which may be easilyand quickly applied to an article to be repaired without the use ofcement of any character. Its particular object is to produce a patchconsisting of a rubber element arranged to be clamped securely betweentwo metal ele ments, one of. the met-al elements being constructed anclarranged for easy and quick introcluction within the article to berepaired, while presenting a proper clamping surface.

ther objects ancl advantages vvill be apparent from the followingdescription, and it will be understood that changes in the specificstructure shown and descriloed may be made within the scope of theclaims without departing from the spirit of the in vention.

In the clrawings forming a portion of this specification and in whichlike numerals of reference indicate similar parts of the severalviews,Figure 1 is a view of a portion of an automobile tire with thepresent Fig. 2 is a section taken through the patch and tire in place. F3 is a view of the several parts of the patch detacheol.

Beferring 110W to the drawings, the present patch includes threeelements, a rubber thimble 5 including a closed conical portion of thinrubber 6, having a relatively thick rubber diaphragm 7 at its base, thisdiaphragm being provided with a central circular opening 8; a metallicvvasher 10; and a spiral clamping spring 11. The metallic washer 10 isconcavo convex, as shown, ancl has, at its concave side, a centralcircular boss 11 which corresponds with a central circular recess 12 inthe convex surface of the washer, the boss having a central opening 13communicating with the recess 12. The spring clamping element 11consists of a spiral spring, as shown, having its extremity at its minorend turned at right ang es to extend longitudinally through theSpecification of Letters Patent. Pa,tgnted Aug, 15, 1911,

Applcaton filed June 8, 1910.

Seral No. 565,742.

spiral in the form of a threadecl pin 14:,

Which is of a size to pass through the opening 13. A nut 15 is provided,and is arrangecl i"or threaded engagement upon the pin 14.

As W1ll be seen from the drawings, the

point of union of the minor helix of the the blunt nose 16 may be againengaged,

With the rubber 6 thereover, through an opening indicated at A in atire, and the spring again rotated to carry both it and the member 5into the tire, the spring being held by the outer extremity of the pin14, as Will be understood.

In preparing the tire for the introduction of these members, an openingis cut therein around the puncture, of a size to receive the boss 11,and this boss is of a size to fit in the opening 8 of the diaphragm 7.

After the members 5 and 11 have been engagecl vvithin the tire, theviasher element 10 is disposed with the outer extremity of the pin 14through the opening 18, and with the boss 11 engaged through theopenings A and 8. The nut 15 is then engaged With the outer extremity ofthe pin 14, and is screwed home into the recess 12, which draws theminor end of the spring element upvvardly and firmly clamps the majorhelix of this spring element, indicated at 17, against the inner face ofthe diaphragm 7, thus securely pinching and holding this diaphragm 7between the helix 17 and the inner concave face of the washer 10, theconcavity of this washer causing its edge portion to bite into the outersurface of the tire, and thus aid in eecting an air tight union.

From the foregoing it Will be seen that in the present device, there isprovided in the element 5, a rubber pocket member having the diaphragmat one end. The provision of the spiral clamping element 11 makes itpossible to introduoe this element into the tire through a smallopening, and thus, as stated in the first portion of this specification,produce a patch in which a rubber element is securely clamped between aninner and an outer metallic clamping element.

What is claimed is:

1. A patch of the class described comprising a spiral spring memberhaving a major and a minor end, a rubber envelop for the spring member,said envelop having a diaphragm at the major end of the spiral springand extending thereover, a member arranged to extend over the outer faceof the diaphragm, and being connected with the minor end of the springfor holding the said spring under increased tension with the said minorend against movement avvay from the diaphragm, to clamp the diaphragmagainst the said member.

2. A patch of the class described comprising a conical rubber thimble, aspiral spring engaged within the thimble with its major end tovvard themajor end of the thimble, a diaphragm located at the major end of thethimble, a threaded pin connected with the minor end of the spiralspring and extended outwardly through the diaphragm, a metallic washerhaving a boss thereon, said diaphragm having an Opening of a size to re.

ceive the boss, said washer being disposed vvith its boss engaged uponthe threaded pin, said vvasher having a recess in its face oppositeto-the boss, and a nut engaged upon the threaded pin and lying in therecess.

8. A patch of the class described comprising a rubber diaphrag1n havingan opening therein a spiral spring engaged against ons side of thediaphragm, a threaded pin connected vvith the springand engaged throughthe opening of thediaphragm, a vvasher engaged vvith the pin at theopposite side of the diaphragm from the spring, a nut engaged with thepin at the opposite side of the washer from the diaphragm, and a rubbermember surrounding the spring and connected with the diaphragm toprevent the passage of air through the opening of the diaphragm.

In testimony vvhereof I afliX 1ny signature, in the presence of twowitnesses.

GUSTAV A. E. KAUL.

Witnesses:

PAUL M. S. PURIS, RICHARD PYE.

Gopes of ths patent may be obtaned for five cents each, by addressingtheGommssioner of 1atents, Washington, .D. 0.

